Information Aggregation in Dynamic Markets with Strategic Traders
This paper studies information aggregation in dynamic markets with a finite number of partially informed strategic traders. It shows that for a broad class of securities, information in such markets always gets aggregated. Trading takes place in a bounded time interval, and in every equilibrium, as time approaches the end of the interval, the market price of a "separable" security converges in probability to its expected value conditional on the traders' pooled information. If the security is "non-separable," then there exists a common prior over the states of the world and an equilibrium such that information does not get aggregated. The class of separable securities includes, among others, Arrow-Debreu securities, whose value is one in one state of the world and zero in all others, and "additive" securities, whose value can be interpreted as the sum of traders' signals.
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- DeMarzo, Peter & Skiadas, Costis, 1998. "Aggregation, Determinacy, and Informational Efficiency for a Class of Economies with Asymmetric Information," Journal of Economic Theory, Elsevier, vol. 80(1), pages 123-152, May.
- Pradeep Dubey & John Geanakoplos & Martin Shubik, 1982. "Revelation of Information in Strategic Market Games: A Critique of Rational Expectations," Cowles Foundation Discussion Papers 634R, Cowles Foundation for Research in Economics, Yale University, revised Nov 1985.
- Wolfgang Pesendorfer & Jeroen M. Swinkels, 1997.
"The Loser's Curse and Information Aggregation in Common Value Auctions,"
Econometric Society, vol. 65(6), pages 1247-1282, November.
- Wolfgang Pesendorfer & Jeroen M. Swinkels, 1995. "The Loser's Curse and Information Aggregation in Common Value Auctions," Discussion Papers 1147, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
- Dutta, Jayasri & Morris, Stephen, 1997. "The Revelation of Information and Self-Fulfilling Beliefs," Journal of Economic Theory, Elsevier, vol. 73(1), pages 231-244, March.
- Jayasri Dutta & Stephen Morris, "undated". "The Revelation of Information and Self-Fulfilling Beliefs," Penn CARESS Working Papers 269cceedcbd401a5e46548b88, Penn Economics Department.
- DUTTA, Jayasri & MORRIS, Stephen, 1995. "The Revelation of Information and Self-Fulfilling Beliefs," CORE Discussion Papers 1995076, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
- Jayasri Dutta & Stephen Morris, "undated". ""The Revelation of Information and Self-Fulfilling Beliefs''," CARESS Working Papres 95-03, University of Pennsylvania Center for Analytic Research and Economics in the Social Sciences.
- Dutta, J. & Morris, S., "undated". "The revelation of information and self-fulfilling beliefs," CORE Discussion Papers RP 1264, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
- Philip J Reny & Motty Perry, 2006. "Toward a Strategic Foundation for Rational Expectations Equilibrium," Econometrica, Econometric Society, vol. 74(5), pages 1231-1269, 09.
- Mikhail Golosov & Guido Lorenzoni & Aleh Tsyvinski, 2014. "Decentralized Trading With Private Information," Econometrica, Econometric Society, vol. 82(3), pages 1055-1091, 05.
- Mikhail Golosov & Aleh Tsyvinski & Guido Lorenzoni, 2008. "Decentralized trading with private information," 2008 Meeting Papers 391, Society for Economic Dynamics.
- Mikhail Golosov & Guido Lorenzoni & Aleh Tsyvinski, 2009. "Decentralized Trading with Private Information," NBER Working Papers 15513, National Bureau of Economic Research, Inc.
- Peter DeMarzo & Costis Skiadas, 1999. "On the uniqueness of fully informative rational expectations equilibria," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 13(1), pages 1-24.
- Kerry Back & C. Henry Cao & Gregory A. Willard, 2000. "Imperfect Competition among Informed Traders," Journal of Finance, American Finance Association, vol. 55(5), pages 2117-2155, October.
- Nielsen, Lars Tyge, et al, 1990. "Common Knowledge of an Aggregate of Expectations," Econometrica, Econometric Society, vol. 58(5), pages 1235-1239, September.
- Robert Wilson, 1977. "A Bidding Model of Perfect Competition," Review of Economic Studies, Oxford University Press, vol. 44(3), pages 511-518. Full references (including those not matched with items on IDEAS)
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